CN204777222U - Chain tensioning device is carried to road sweeper - Google Patents
Chain tensioning device is carried to road sweeper Download PDFInfo
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- CN204777222U CN204777222U CN201520482424.6U CN201520482424U CN204777222U CN 204777222 U CN204777222 U CN 204777222U CN 201520482424 U CN201520482424 U CN 201520482424U CN 204777222 U CN204777222 U CN 204777222U
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- cylinder
- swing arm
- tensioning hydro
- tensioning
- chain
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Abstract
The utility model discloses a chain tensioning device is carried to road sweeper sets up both ends and symmetric distribution about the sprocket shaft, overspeed device tensioner includes support, tensioning hydro -cylinder, support curb plate, rotates swing arm and the hydraulic control unit who is connected with the support curb plate, the other end of swing arm rotates with the piston rod of tensioning hydro -cylinder is connected the other end and the rotate bracket connection of tensioning hydro -cylinder, the support curb plate is equipped with a circlip with the rotation junction of swing arm, and the swing arm is equipped with the 2nd circlip who is used for axial positioning with the rotation junction of tensioning hydro -cylinder, and the tensioning hydro -cylinder is equipped with the 3rd circlip who is used for axial positioning with the rotation junction of support, hydraulic control unit is connected with the tensioning hydro -cylinder through the fluid pressure line, be equipped with the groove of sliding on the box curb plate, the sprocket shaft passes the groove of sliding to be passed through second bearing and swing arm and rotates and be connected. The utility model discloses have the chain tensile force that keeps invariable and the function of chain wearing and tearing back automatic compensation tensioning, the operation of messenger's equipment more steadily reliably.
Description
Technical field
The utility model relates to a kind of tightening device, is specifically related to a kind of road broom chain tightening device.
Background technology
Chain is as the major part of road broom waste conveyor, tensioning is needed during installation, in use the degree of tightness of chain directly affects the service life of chain, and the long-time rear chain that uses has certain amount of tension because chain pitch can be caused to strengthen for wearing and tearing normally.If chain tension is inadequate, chain generation is acutely beated, and makes Chain conveyer unstable, even easily occurs loose chain, runs chain, takes off tooth, jumps the phenomenons such as tooth, therefore should adjust the elasticity of chain in good time.
Current chain stretching device majority adopts traditional nut-screw to coordinate the bearing seat at spring top or slide fastener wheel shaft two ends and tensioning hydro-cylinder to coordinate guiding mechanism (orienting lug and groove) adjusting chain degree of tension.Traditional nut-screw tightening device does not have integrated abrasion compensation, and tensioning degree is wayward, easily occurs the situation that both sides degree of tension differs, sprocket shaft very easily axial motion in the course of the work, and the tightening device of this form needs manual regulation, and regulating frequency is high, wastes time and energy; Tensioning hydro-cylinder coordinates the tightening device of guiding mechanism this form higher to working condition requirement, and package unit needs sealing, takes up room large, and orienting lug and Pocket Machining accuracy requirement higher, manufacturing cost is high.
Number of patent application: 201120563214.1, the applying date: 2011.12.29, patent name is: the closed tightening device of load-transfer device, it is the front and back position that screw rod 4 crank motion rotarily driven in it by screw sheel 3 changes roller bearing seat, thus change the front and back position of cylinder, realize the adjustment to stretch, not there is integrated abrasion compensation, tensioning degree is wayward, easily there is the situation that both sides degree of tension differs, and the tightening device of this form needs manual regulation, and regulating frequency is high, wastes time and energy.
Number of patent application: 201210432406.8, the applying date: 2012.11.02, patent name is: chain tension testing fixture, adopt screw rod 6 pocketed springs 7 and be furnished with induction nut 8, sensor 9, though the tensioning of the timely adjusting chain of energy, whole device need be completed by the slip of slide block 4 and slide rail 3, this device processing, quality of fit require high, compatible with environment is poor, can not be applied in the operating mode that this environment of picture road broom clearing apparatus is more severe, very easily occur stuck phenomenon.
Number of patent application: 201220388877.9, the applying date: 2012.08.07, patent name is: chain stretching device, comprises two tensioning hydro-cylinder 1, two adapter sleeves 3 and at least two pairs of guiding mechanisms 5, has integrated abrasion compensation, can not produce axial motion.But its guiding mechanism 5 complicated structure, and its processing, quality of fit require high, and compatible with environment is poor, can not be applied in as the more severe operating mode of road broom clearing apparatus this environment, very easily occur stuck phenomenon.
Utility model content
For the deficiency that prior art exists, the utility model object is to provide that a kind of structure is simple, take up room road broom chain tightening device that is little, control comfort, there is the function keeping auto-compensation tensioning after constant chain tension and chain wear, equipment is run more steadily reliable.
To achieve these goals, the utility model realizes by the following technical solutions:
A kind of road broom chain tightening device of the present utility model, is arranged on two ends, sprocket shaft left and right and symmetrical, and sprocket shaft is provided with chain; Tightening device comprises the support be fixed on box side, tensioning hydro-cylinder, the rack side plate be fixed on box side, the swing arm be rotationally connected with rack side plate and for controlling the flexible hydraulic control unit of left and right sides tensioning hydro-cylinder; The other end of swing arm is connected with the piston rod rotation of tensioning hydro-cylinder, and the other end of tensioning hydro-cylinder is connected with holder pivots; The place of being rotationally connected of rack side plate and swing arm is provided with the first circlip moved axially for limiting swing arm, the place of being rotationally connected of swing arm and tensioning hydro-cylinder is provided with the second circlip for axial location, and the place of being rotationally connected of tensioning hydro-cylinder and support is provided with the 3rd circlip for axial location; Hydraulic control unit is connected with tensioning hydro-cylinder by hydraulic tubing; Box side is provided with slippage slot, and sprocket shaft is rotationally connected by the second bearing and swing arm through slippage slot.
Above-mentioned rack side plate is bolted on box side.
Above-mentioned swing arm is rotationally connected by the first bearing pin and clutch shaft bearing and rack side plate, and the first bearing pin is vertically fixed on rack side plate by welding manner.
Above-mentioned swing arm is connected with the piston rod rotation of tensioning hydro-cylinder by the second bearing pin.
Above-mentioned tensioning hydro-cylinder is connected with holder pivots by the 3rd bearing pin.
The utility model can realize automatic chain tensioning, degree of automation is high, have the function keeping auto-compensation tensioning after constant chain tension and chain wear, improve the service life of chain, road broom chain be vertical layout, more need to control in real time the tensioning of chain, make equipment run so more steadily reliable, structure is simple, takes up room little, control comfort, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is scheme of installation of the present utility model.
Detailed description of the invention
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the utility model further.
A kind of automatic chain tensioning device, comprises rack side plate 1, first bearing pin 2, clutch shaft bearing 3, first circlip 4, bolt 5, swing arm 6, second bearing 7, second bearing pin 8, second circlip 9, slippage slot 10, sprocket shaft 11, chain 12, tensioning hydro-cylinder 13, the 3rd bearing pin 14 and support 15.
Rack side plate 1 is fixed on box side by bolt 5, first bearing pin 2 is vertically fixed on rack side plate 1 by welding, swing arm 6 is by the first bearing pin 2, clutch shaft bearing 3 and rack side plate are rotationally connected, swing arm 6 is fixed by the first circlip 4 axial limiting, restriction swing arm 6 moves axially, circular hole is had near swing arm 6 midway location, sprocket shaft 11 is rotationally connected with swing arm 6 by the second bearing 7 through the slippage slot 10 of circular arc, sprocket shaft 11 is parallel with the pivot center of swing arm 6 opposite brackets side plate 1 with the pivot center of swing arm 6, the other end of swing arm 6 is connected with tensioning hydro-cylinder 13 piston rod rotation by the second bearing pin 8, it is rotationally connected place by the second circlip 9 axial location, tensioning hydro-cylinder 13 other end is rotationally connected with support 15 by the 3rd bearing pin 14, it is rotationally connected place by the second circlip 9 axial location.Tensioning hydro-cylinder 13 is connected with hydraulic control unit by hydraulic tubing, can realize the automatic adjustment of chain 12 tensile force.
Specific works principle of the present utility model is: after rack side plate 1 is fixing by bolt 5, first bearing pin 2 is also corresponding to be fixed, swing arm 6 can be rotated around the first bearing pin 2 under the pulling of the first bearing pin 2 point action and tensioning hydro-cylinder 13, sprocket shaft 11 and swing arm 6 are rotationally connected by the second bearing 7, swing arm 6 can drive sprocket shaft 11 to move along slippage slot 10 while swinging, sprocket shaft 11 is parallel with the pivot center of swing arm 6 opposite brackets side plate 1 with the pivot center of swing arm 6, and fixed by circlip axial limiting, avoid sprocket shaft axial motion, this ensure that chain 12 keeps plumbness always, shake can not be produced.Sprocket shaft 11 drives the tensioning of sprocket realization to chain 12 while slippage slot 10 movement.When chain 12 in use, after chain 12 becomes slack because wearing and tearing normally, the interaction force of sprocket wheel and chain 12 diminishes, now tensioning hydro-cylinder 13 carrys out the tensioning degree of adjusting chain voluntarily by hydraulic control unit, the tensioning of auto-compensation chain, thus keep constant chain 12 tensile force, equipment is run more steadily reliable.As shown in Figure 2, the two ends, left and right that the utility model is separately positioned on sprocket shaft 11 are arranged symmetrically with, realize voluntarily adjusting chain tensile force time, control left and right sides tensioning hydro-cylinder 13 simultaneous retractable by hydraulic control unit.
The utility model overcomes the complex structure of existing chain stretching device, sprocket shaft very easily axial motion at work, the problem of guiding mechanism working accuracy height and adaptive capacity to environment difference, the utility model can realize automatic chain tensioning simultaneously, degree of automation is high, there is the function of auto-compensation tensioning after keeping constant chain tension and chain 12 to wear and tear, improve the service life of chain 12, road broom chain 12 is vertically arrange, more need to control constantly the tensioning of chain 12, equipment is made to run so more steadily reliable, structure is simple, take up room little, control comfort, low cost of manufacture.
More than show and describe groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a road broom chain tightening device, is characterized in that, is arranged on sprocket shaft (11) two ends, left and right and symmetrical; Tightening device comprises the support (15) be fixed on box side, tensioning hydro-cylinder (13), the rack side plate (1) be fixed on box side, the swing arm (6) be rotationally connected with rack side plate (1) and for controlling the flexible hydraulic control unit of left and right sides tensioning hydro-cylinder (13);
The other end of described swing arm (6) is connected with the piston rod rotation of tensioning hydro-cylinder (13), and the other end and the support (15) of described tensioning hydro-cylinder (13) are rotationally connected;
Described rack side plate (1) is provided with the place of being rotationally connected of swing arm (6) the first circlip (4) moved axially for limiting swing arm (6), described swing arm (6) is provided with the second circlip (9) for axial location with the place of being rotationally connected of tensioning hydro-cylinder (13), and described tensioning hydro-cylinder (13) is provided with the 3rd circlip for axial location with the place of being rotationally connected of support (15);
Described hydraulic control unit is connected with tensioning hydro-cylinder (13) by hydraulic tubing;
Described box side is provided with slippage slot (10), and described sprocket shaft (11) is rotationally connected by the second bearing (7) and swing arm (6) through slippage slot (10).
2. road broom chain tightening device according to claim 1, is characterized in that, described rack side plate (1) is fixed on box side by bolt (5).
3. road broom chain tightening device according to claim 1, it is characterized in that, described swing arm (6) is rotationally connected with rack side plate (1) by the first bearing pin (2) and clutch shaft bearing (3), and described first bearing pin (2) is vertically fixed on rack side plate (1) by welding manner.
4. road broom chain tightening device according to claim 1, is characterized in that, described swing arm (6) is connected by the piston rod rotation of the second bearing pin (8) with tensioning hydro-cylinder (13).
5. road broom chain tightening device according to claim 1, is characterized in that, described tensioning hydro-cylinder (13) is rotationally connected by the 3rd bearing pin (14) and support (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482424.6U CN204777222U (en) | 2015-07-06 | 2015-07-06 | Chain tensioning device is carried to road sweeper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482424.6U CN204777222U (en) | 2015-07-06 | 2015-07-06 | Chain tensioning device is carried to road sweeper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204777222U true CN204777222U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482424.6U Expired - Fee Related CN204777222U (en) | 2015-07-06 | 2015-07-06 | Chain tensioning device is carried to road sweeper |
Country Status (1)
| Country | Link |
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| CN (1) | CN204777222U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458365A (en) * | 2018-12-24 | 2019-03-12 | 江苏徐工工程机械研究院有限公司 | Construction machinery hydraulic system and engineering machinery |
| CN109532106A (en) * | 2018-12-29 | 2019-03-29 | 佛山市达肯包装机械有限公司 | Paper bag arranges collating unit |
| CN110864600A (en) * | 2019-11-25 | 2020-03-06 | 河南省计量科学研究院 | Measurable meter rice device of tensile force |
| CN117142041A (en) * | 2023-09-08 | 2023-12-01 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
-
2015
- 2015-07-06 CN CN201520482424.6U patent/CN204777222U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458365A (en) * | 2018-12-24 | 2019-03-12 | 江苏徐工工程机械研究院有限公司 | Construction machinery hydraulic system and engineering machinery |
| CN109458365B (en) * | 2018-12-24 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | Engineering machinery hydraulic system and engineering machinery |
| CN109532106A (en) * | 2018-12-29 | 2019-03-29 | 佛山市达肯包装机械有限公司 | Paper bag arranges collating unit |
| CN110864600A (en) * | 2019-11-25 | 2020-03-06 | 河南省计量科学研究院 | Measurable meter rice device of tensile force |
| CN110864600B (en) * | 2019-11-25 | 2021-07-23 | 河南省计量科学研究院 | Measurable meter rice device of tensile force |
| CN117142041A (en) * | 2023-09-08 | 2023-12-01 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
| CN117142041B (en) * | 2023-09-08 | 2024-03-08 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20200706 |